Whose religious message should taxpayers be required to fund?

The Oklahoma State House prominently features a granite monument with the 10 Commandments inscribed on it. Now, a Satanist group is pushing to erect their own competing monument. What’s your take on this. Should all taxpayers, regardless of their religious views, be required to fund Christian displays? Should they have to fund monuments for every religion that applies, even Satanists? Or should taxpayers be released from the requirement to fund any religious display? Should such funding be up to those who wish to preach their particular religious message, and nobody else?